Sounds great. My experience has been about the same as yours. I have taken several Britts that were house pets that were up to 4 years old and they have hunted well with a little effort and opportunity.

One thing I think you should do is don't ask the dog to flush the bird. She will decide she doesn't need to wait for you and will flush them herself. You should always walk in front on her points and flush the bird while she is steady on point.

Ezzy